Fast Ethernet Module with Inline Power — 48-Port Inline Power 10/100Base-Tx Switching Line Card (WS-X4148-RJ-45V)
The Cisco Catalyst 4500 Inline Power 10/100BASE-TX Ethernet Switching line card supports up to 48 ports per line card (RJ-45 interfaces). Along with phone discovery, these line cards support auto-sensing and auto-negotiation to determine the speed and duplex mode of the attached device. The Cisco Catalyst 4500, with support for up to 240 multiservice ports, directly provides inline power. To support the demand for phone power on the Cisco Catalyst 4500, Cisco has developed an auxiliary DC power shelf that supplies the Cisco Catalyst 4500 with the 48 volts needed for inline power.
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